Antiskid device for auto-tires.



' J. P. MAHUNY. ANTISYKID- DEVICE FOR AUTO TIRES. APPLICATION HLED MN. 18 AISHS- 1,225,839. V Patented 113371511917,

JOHN P. MARTINYpOF BIG RAPIDS, MICHIGAN.

viiiv'risiin :DEVICE Foa fiirro-trrians.y

To I/ZZ whom it may conce-ML.'

Be it known thatI, JOHN P. `MARTINY, a citizen of the United 'States residing at BigRa'pids, in the county of Mecosta, State of Michigan, have invented eertainnew and useful Improvements in AntiskidDevices ,for Auto-Tires; and I do' hereby declare the following to be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it ap-k pertains to make and use the same.

This invention relates to improvements in anti-skid devices' for automobile tires.

'On-e object of the invention is to yprovide a simple and novel device which caribe conveniently carried inthe tool box oan automobile, and which can be quickly and easilyl 'applied to or detached from the wheel without the necessity for the use ofaiiy special ftools. e

Another object is 'to provide a ldevice of this 'character which serves as a traction device as Well as ananti-skidding device, and which is so constructed that it will not creep around the tire. k

` Other objectsy and advantages will be kapparent from the 'following description when taken in connection with the aeompanying drawing.

In the drawing: Figure 1 is a side elevation of a portion of `a tire and wheel showing my invention ap- .plied thereto; l ,t n

Fig. 2 is a vertical section on thefline 2 2 ofFig.1;

Fig. 3 is a similar section showing the s device in position lo be applied or removed;

and

f ing-drawing, 1() represents a curvedfplate of metal or other suitable material so bent as 'to conform to and lit over the outer longi tiidinal and transverse curvature of the tire 11. The intermediate portion of the plate y is widened and has secured'to thek'faee there- "et, adj aeeiit; the end'` the two transversely extending ribs or ealks 12, and the ,interino diate longitudinally extending calk orkrib 13. The former of'the blocks'seive to in- Qcreasethe traction of the tire, vvliilethelatter or ealk =13 serves to prevent antiskid-` ding or slide slipping. yThe sides of the plate are reduced as shown at 14, and 15 re- Specification of Letters Patent;

L Fig'. 4 is a perspective View of tliefgdeviceremoved from the wheel.

tools.

sidesis a Wire yoke 16, the arms of which depend Yat one side. of the tire and are prrr vided with eyes 17 wliich'pivotaliy receive the intermediate or transverse portion of a. yoke 18, the arms of which are bowed and extend under thefelly ii) of the wheel7 in straddling relation to the spoke 20. fis shown, the' outer ends of the arms of the yoke i8 are bent .to provide hoops i8. y

Connected to theothe'r side l5 of the plate l() is a yoke 21 which extends radially at the side of the tire,an`d has the end of radiai arms intiiriied toward each other as .fad-i` cated at 22.*to provide ,tulcruins .fi yoke member 23 has the intermediate portions bei i e Patented liayfi?, mi?. i Application led January 18, 1916. lSerial No. 72,8%. I

eyes 25 of a small yoke 26, the int rmediate f portionfof which is detacliably'engaged with the hook portions oi? the arms of the yoke 1.8. The ends of the arnisof the yoke 23 are in-v turned and disposed within a tubular hand grip 28. Y

In applying the device tol a wlieei, the

plate 10 is moved over the tread of the tire and' the arnis of the yoke 1S passed under the ifelly 1S). The transverse portion of the yoke 26 is then engaged with the hooks 18 and the yoke 2S Yswung inwardly ofthe wheel on the inturned portions 22 as its pivot. This will tend to draw the yoke 26,

and the inner end of the yoke 2l iii af direcA .tion toward each other, thus bringing; the

connecting point betweenthe yokes 23 and 26 outwardly beyond the portions 22, where by the device is rmly tightened and clamped ontothe tire and teliy. To remove the device it is only necessary to swine' outwardlyon the yoke i3 and then disengage the yoke 26 'troni the hooks i8.

Frein the foregoing it will be seen that l have provided amextreiiicly simple device of this character which can be quickly and y easily ap klied to or removed from an automobile w eel, without the aid of any speeiai The device is of such convenient con struction that a dozen or more can be earried iii the tool box, of the automobile.

vWhat is claimed is:

lies

i tightening device for bands having y V.spaced eyes at each end consisting of, a yoke member arranged toi pass"through one pair of said eyes and having eyes at the ends ofL its legs, a second yoke member having a e hight portion passing pivotnlly through the eyes of the'lirst .voke :1nd havin;r purullel legs euch lient twice iii the .sume direction to provide Central portions adapted to lie btnenth u wheel rim :und end portions adapted to lie at the sides of such u rim, the endsof said legs beingr provideil with hooks, u third `voke member adapted to extend through the. re mailling eyes of tinI element und having inwardly directed ends on its legs, :i .yoke lever lmvilig its sides pivotully supported on the ends ot' the third Yoke member. und :i vokeK member swingingly connected to one end of .snid lever :1nd having its bight portion enfngenble with the hook ends of the second member, the outer free end of the lever being movable to n positiouinwardly of n line drawn through its pivotal axis und the pivotal axisvof the lust nientioned yoke.

In testimony whereof. I utlix my signature, 2o in the presence of two witnesses,

JOHN I. MARTI'YJ 

